1.

図書
図書
1. Whole numbers and fractions : a self-teaching course based on daily-life arithmetics
by Guy T. Buswell, William A. Brownell and Lenore John
出版情報: [S.l.] : Published for the United States Armed Forces by Ginn, c1943
シリーズ名: War Department education manual ; EM 300 . Review arithmetic ; textbook 1
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2.

図書
図書
2. Decimals, per cents and applications of arithmetic : a self-teaching course based on daily-life arithmetics
by Guy T. Buswell, William A. Brownell and Lenore John
出版情報: [Washington] : Published for the United States Armed Forces by Ginn and company, c1943
シリーズ名: War Department education manual ; EM 302 . Review arithmetic ; textbook 2
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